Commit | Line | Data |
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a7393a71 RK |
1 | /* This Source Code Form is subject to the terms of the Mozilla Public |
2 | * License, v. 2.0. If a copy of the MPL was not distributed with this file, | |
3 | * You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
23cd2dcc | 4 | |
aa45a91b | 5 | var gGLMapCanvas, gTrackCanvas, gGeolocation; |
0dc9cd0d | 6 | var gDebug = false; |
23cd2dcc | 7 | |
b054bd48 | 8 | var gMinTrackAccuracy = 1000; // meters |
68ca4617 | 9 | var gCenterDelayAfterMove = 3000; // milliseconds |
b054bd48 | 10 | |
b47b4a65 RK |
11 | var gMapStyles = { |
12 | // OSM tile usage policy: http://wiki.openstreetmap.org/wiki/Tile_usage_policy | |
55c4a0b7 | 13 | // Find some more OSM ones at http://wiki.openstreetmap.org/wiki/Slippy_map_tilenames#Tile_servers |
ca77d52d | 14 | // and http://wiki.openstreetmap.org/wiki/Tiles or http://wiki.openstreetmap.org/wiki/TMS |
b47b4a65 RK |
15 | osm_mapnik: |
16 | {name: "OpenStreetMap (Mapnik)", | |
a40d8348 | 17 | url: "https://[a-c].tile.openstreetmap.org/{z}/{x}/{y}.png", |
5a19ec68 | 18 | copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'}, |
14e6d3ad RK |
19 | osm_cyclemap: |
20 | {name: "Cycle Map (OSM)", | |
a40d8348 | 21 | url: "https://[a-c].tile.thunderforest.com/cycle/{z}/{x}/{y}.png", // "http://[a-c].tile.opencyclemap.org/cycle/{z}/{x}/{y}.png", |
5a19ec68 | 22 | copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'}, |
14e6d3ad RK |
23 | osm_transmap: |
24 | {name: "Transport Map (OSM)", | |
a40d8348 | 25 | url: "https://[a-c].tile.thunderforest.com/transport/{z}/{x}/{y}.png", // "http://[a-c].tile2.opencyclemap.org/transport/{z}/{x}/{y}.png", |
5a19ec68 | 26 | copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'}, |
ca77d52d RK |
27 | osm_germany: |
28 | {name: "OSM German Style", | |
9e501811 | 29 | url: "https://tilecache[1-4].kairo.at/osmde/{z}/{x}/{y}.png", // route through CORS+SSL tilecache @ kairo.at |
e4840ddc | 30 | //url: "http://[a-d].tile.openstreetmap.de/tiles/osmde/{z}/{x}/{y}.png", // https is not supported at all |
ca77d52d | 31 | copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'}, |
e4840ddc RK |
32 | oepnvkarte: |
33 | {name: "ÖPNV-Karte (OSM)", | |
9e501811 | 34 | url: "https://tilecache[1-4].kairo.at/oepnv/{z}/{x}/{y}.png", // route through CORS+SSL tilecache @ kairo.at |
e4840ddc RK |
35 | //url: "http://tileserver.memomaps.de/tilegen/{z}/{x}/{y}.png", // memomaps.de does not support CORS or https at this time :( |
36 | copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>, tiles by <a href="http://memomaps.de">MeMoMaps</a> under <a href="http://creativecommons.org/licenses/by-sa/2.0/">CC-BY-SA</a>.'}, | |
b47b4a65 | 37 | mapquest_open: |
55c4a0b7 | 38 | {name: "MapQuest OSM", |
31011cc9 | 39 | url: "https://tilecache[1-4].kairo.at/mapqosm/{z}/{x}/{y}.png", // route through CORS+SSL tilecache @ kairo.at |
e4840ddc | 40 | //url: "http://otile[1-4].mqcdn.com/tiles/1.0.0/osm/{z}/{x}/{y}.png", // https has wrong cert, akamai instead of mqcdn |
ca77d52d | 41 | copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> and contributors (<a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>), tiles courtesy of <a href="http://www.mapquest.com/">MapQuest</a>.'}, |
55c4a0b7 RK |
42 | mapquest_aerial: |
43 | {name: "MapQuest Open Aerial", | |
31011cc9 | 44 | url: "https://tilecache[1-4].kairo.at/mapqsat/{z}/{x}/{y}.png", // route through CORS+SSL tilecache @ kairo.at |
e4840ddc | 45 | //url: "http://otile[1-4].mqcdn.com/tiles/1.0.0/sat/{z}/{x}/{y}.jpg", |
5a19ec68 | 46 | copyright: 'Tiles Courtesy of <a href="http://www.mapquest.com/">MapQuest</a>, portions Courtesy NASA/JPL-Caltech and U.S. Depart. of Agriculture, Farm Service Agency.'}, |
ca77d52d RK |
47 | osm_hot: |
48 | {name: "OSM HOT style", | |
31011cc9 | 49 | url: "https://tilecache[1-4].kairo.at/osmhot/{z}/{x}/{y}.png", // route through CORS+SSL tilecache @ kairo.at |
e4840ddc | 50 | //url: "http://[a-c].tile.openstreetmap.fr/hot/{z}/{x}/{y}.png", // https has CAcert which doesn't work in browsers |
ca77d52d | 51 | copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'}, |
e4840ddc RK |
52 | hikebike: |
53 | {name: "Hike and Bike (OSM)", | |
31011cc9 | 54 | url: "https://tilecache[1-4].kairo.at/hikebike/{z}/{x}/{y}.png", // route through CORS+SSL tilecache @ kairo.at |
e4840ddc RK |
55 | //url: "http://toolserver.org/tiles/hikebike/{z}/{x}/{y}.png", // toolserver.org does not support CORS at this time :( |
56 | copyright: 'Map data and imagery © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>'}, | |
57 | outdoors: | |
58 | {name: "Outdoors (OSM)", | |
31011cc9 | 59 | url: "https://[a-c].tile.thunderforest.com/outdoors/{z}/{x}/{y}.png", // url: "http://[a-c].tile.opencyclemap.org/outdoors/{z}/{x}/{y}.png", |
e4840ddc | 60 | copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> and contributors (<a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>), tiles by <a href="http://www.thunderforest.com/">Thunderforest</a>.'}, |
ca77d52d | 61 | stamen_toner: |
e4840ddc | 62 | {name: "Stamen Toner (B+W)", |
31011cc9 | 63 | url: "https://tilecache[1-4].kairo.at/toner/{z}/{x}/{y}.png", // route through CORS+SSL tilecache @ kairo.at |
e4840ddc | 64 | //url: "http://[a-c].tile.stamen.com/toner/{z}/{x}/{y}.jpg", // https has wrong cert, .ssl.fastly.net instead of .tile.stamen.com |
ca77d52d RK |
65 | copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>, tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>.'}, |
66 | stamen_terrain: | |
e4840ddc | 67 | {name: "Stamen Terrain (USA only)", |
31011cc9 | 68 | url: "https://tilecache[1-4].kairo.at/terrain/{z}/{x}/{y}.png", // route through CORS+SSL tilecache @ kairo.at |
e4840ddc | 69 | //url: "http://[a-c].tile.stamen.com/terrain/{z}/{x}/{y}.jpg", // https has wrong cert, .ssl.fastly.net instead of .tile.stamen.com |
ca77d52d RK |
70 | copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>, tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>.'}, |
71 | stamen_watercolor: | |
e4840ddc | 72 | {name: "Stamen Watercolor (artistic)", |
31011cc9 | 73 | url: "https://tilecache[1-4].kairo.at/watercolor/{z}/{x}/{y}.png", // route through CORS+SSL tilecache @ kairo.at |
e4840ddc | 74 | //url: "http://[a-c].tile.stamen.com/watercolor/{z}/{x}/{y}.jpg", // https has wrong cert, .ssl.fastly.net instead of .tile.stamen.com |
ca77d52d | 75 | copyright: 'Map data © <a href="http://www.openstreetmap.org/">OpenStreetMap</a> contributors, <a href="http://www.openstreetmap.org/copyright">ODbL/CC-BY-SA</a>, tiles by <a href="http://stamen.com">Stamen Design</a>, under <a href="http://creativecommons.org/licenses/by/3.0">CC BY 3.0</a>.'}, |
b47b4a65 | 76 | }; |
23cd2dcc RK |
77 | |
78 | var gLastMouseX = 0; | |
79 | var gLastMouseY = 0; | |
80 | ||
b395419b | 81 | var gLoadingTile; |
23cd2dcc | 82 | |
3610c22d RK |
83 | var gMapPrefsLoaded = false; |
84 | ||
23cd2dcc | 85 | var gDragging = false; |
517c0099 | 86 | var gDragTouchID, gPinchStartWidth; |
23cd2dcc | 87 | |
d361104b | 88 | var gGeoWatchID, gGPSWakeLock; |
55c4a0b7 | 89 | var gTrack = []; |
aa45a91b | 90 | var gLastTrackPoint; |
05c21757 | 91 | var gCenterPosition = true; |
68ca4617 | 92 | var gLastMoveAction = null; |
55c4a0b7 | 93 | |
b47b4a65 | 94 | function initMap() { |
4b12da3a | 95 | gGeolocation = navigator.geolocation; |
ac6286bd RK |
96 | // Set up canvas context. |
97 | gGLMapCanvas = document.getElementById("map"); | |
ecde0af2 RK |
98 | try { |
99 | // Try to grab the standard context. If it fails, fallback to experimental. | |
100 | // We also try to tell it we do not need a depth buffer. | |
edc3be71 RK |
101 | gMap.gl = gGLMapCanvas.getContext("webgl", {depth: false}) || |
102 | gGLMapCanvas.getContext("experimental-webgl", {depth: false}); | |
ecde0af2 RK |
103 | } |
104 | catch(e) {} | |
edc3be71 | 105 | if (!gMap.gl) { |
16e4f664 | 106 | // If we don't have a GL context, give up now |
ecde0af2 | 107 | showGLWarningDialog(); |
edc3be71 | 108 | gMap.gl = null; |
ecde0af2 | 109 | } |
16e4f664 RK |
110 | else { |
111 | // GL context can be lost at any time, handle that. | |
112 | // See http://www.khronos.org/webgl/wiki/HandlingContextLost | |
113 | gGLMapCanvas.addEventListener("webglcontextlost", | |
114 | gMap.handleContextLost, false); | |
115 | gGLMapCanvas.addEventListener("webglcontextrestored", | |
116 | gMap.handleContextRestored, false); | |
117 | } | |
4b1d0915 | 118 | gTrackCanvas = document.getElementById("track"); |
aa45a91b | 119 | gTrackLayer.context = gTrackCanvas.getContext("2d"); |
23cd2dcc | 120 | |
4b12da3a RK |
121 | //gDebug = true; |
122 | if (gDebug) { | |
123 | gGeolocation = geofake; | |
124 | var hiddenList = document.getElementsByClassName("debugHide"); | |
125 | // last to first - list of elements with that class is changing! | |
126 | for (var i = hiddenList.length - 1; i >= 0; i--) { | |
127 | hiddenList[i].classList.remove("debugHide"); | |
128 | } | |
129 | } | |
130 | ||
edc3be71 | 131 | gAction.addEventListener("prefload-done", gMap.initGL, false); |
ecde0af2 | 132 | |
582d50fc RK |
133 | console.log("map vars set, loading prefs..."); |
134 | loadPrefs(); | |
135 | } | |
b395419b | 136 | |
582d50fc RK |
137 | function loadPrefs(aEvent) { |
138 | if (aEvent && aEvent.type == "prefs-step") { | |
139 | console.log("wait: " + gWaitCounter); | |
140 | if (gWaitCounter == 0) { | |
141 | gAction.removeEventListener(aEvent.type, loadPrefs, false); | |
142 | gMapPrefsLoaded = true; | |
143 | console.log("prefs loaded."); | |
144 | ||
145 | gTrackCanvas.addEventListener("mouseup", mapEvHandler, false); | |
146 | gTrackCanvas.addEventListener("mousemove", mapEvHandler, false); | |
147 | gTrackCanvas.addEventListener("mousedown", mapEvHandler, false); | |
148 | gTrackCanvas.addEventListener("mouseout", mapEvHandler, false); | |
149 | ||
150 | gTrackCanvas.addEventListener("touchstart", mapEvHandler, false); | |
151 | gTrackCanvas.addEventListener("touchmove", mapEvHandler, false); | |
152 | gTrackCanvas.addEventListener("touchend", mapEvHandler, false); | |
153 | gTrackCanvas.addEventListener("touchcancel", mapEvHandler, false); | |
154 | gTrackCanvas.addEventListener("touchleave", mapEvHandler, false); | |
155 | ||
156 | gTrackCanvas.addEventListener("wheel", mapEvHandler, false); | |
157 | ||
158 | document.getElementById("body").addEventListener("keydown", mapEvHandler, false); | |
159 | ||
5dd2ab70 RK |
160 | document.addEventListener("visibilitychange", visibilityEvHandler, false); |
161 | ||
d7310ee2 | 162 | console.log("Events added."); |
582d50fc | 163 | |
decacd7f | 164 | console.log("Init loading tile..."); |
582d50fc | 165 | gLoadingTile = new Image(); |
582d50fc | 166 | gLoadingTile.onload = function() { |
decacd7f | 167 | console.log("Loading tile loaded."); |
ecde0af2 | 168 | var throwEv = new CustomEvent("prefload-done"); |
582d50fc RK |
169 | gAction.dispatchEvent(throwEv); |
170 | }; | |
decacd7f RK |
171 | console.log("Set loading tile..."); |
172 | gLoadingTile.src = "style/loading.png"; | |
582d50fc RK |
173 | } |
174 | } | |
175 | else { | |
176 | if (aEvent) | |
177 | gAction.removeEventListener(aEvent.type, loadPrefs, false); | |
178 | gAction.addEventListener("prefs-step", loadPrefs, false); | |
179 | gWaitCounter++; | |
ae9e33a2 RK |
180 | gPrefs.get("active_map_style", function(aValue) { |
181 | if (aValue && gMapStyles[aValue]) { | |
182 | gMap.activeMap = aValue; | |
183 | } | |
33a97b69 RK |
184 | else { |
185 | gMap.activeMap = "osm_mapnik"; | |
186 | } | |
187 | document.getElementById("mapSelector").value = gMap.activeMap; | |
188 | document.getElementById("copyright").innerHTML = | |
189 | gMapStyles[gMap.activeMap].copyright; | |
ae9e33a2 RK |
190 | gWaitCounter--; |
191 | var throwEv = new CustomEvent("prefs-step"); | |
192 | gAction.dispatchEvent(throwEv); | |
193 | }); | |
194 | gWaitCounter++; | |
582d50fc | 195 | gPrefs.get("position", function(aValue) { |
ac6286bd | 196 | if (aValue && aValue.x && aValue.y && aValue.z) { |
dda55132 | 197 | gMap.pos = aValue; |
582d50fc | 198 | } |
df81068a RK |
199 | gWaitCounter--; |
200 | var throwEv = new CustomEvent("prefs-step"); | |
201 | gAction.dispatchEvent(throwEv); | |
582d50fc RK |
202 | }); |
203 | gWaitCounter++; | |
204 | gPrefs.get("center_map", function(aValue) { | |
ae9e33a2 | 205 | if (aValue === undefined) { |
582d50fc | 206 | document.getElementById("centerCheckbox").checked = true; |
ae9e33a2 RK |
207 | } |
208 | else { | |
582d50fc | 209 | document.getElementById("centerCheckbox").checked = aValue; |
ae9e33a2 | 210 | } |
582d50fc RK |
211 | setCentering(document.getElementById("centerCheckbox")); |
212 | gWaitCounter--; | |
213 | var throwEv = new CustomEvent("prefs-step"); | |
214 | gAction.dispatchEvent(throwEv); | |
215 | }); | |
216 | gWaitCounter++; | |
217 | gPrefs.get("tracking_enabled", function(aValue) { | |
ae9e33a2 | 218 | if (aValue === undefined) { |
582d50fc | 219 | document.getElementById("trackCheckbox").checked = true; |
ae9e33a2 RK |
220 | } |
221 | else { | |
582d50fc | 222 | document.getElementById("trackCheckbox").checked = aValue; |
ae9e33a2 | 223 | } |
582d50fc RK |
224 | gWaitCounter--; |
225 | var throwEv = new CustomEvent("prefs-step"); | |
226 | gAction.dispatchEvent(throwEv); | |
227 | }); | |
228 | gWaitCounter++; | |
cef88e12 RK |
229 | var trackLoadStarted = false; |
230 | var redrawBase = 100; | |
6ddefbf9 RK |
231 | gTrackStore.getListStepped(function(aTPoint) { |
232 | if (aTPoint) { | |
233 | // Add in front and return new length. | |
234 | var tracklen = gTrack.unshift(aTPoint); | |
7a076538 RK |
235 | // Redraw track periodically, larger distance the longer it gets |
236 | // (but clamped to the first value over a certain limit). | |
fdaf08db RK |
237 | // Initial paint will do initial track drawing. |
238 | if (tracklen % redrawBase == 0) { | |
b4df67c9 | 239 | gTrackLayer.drawTrack(); // TODO: we could draw incremmentally if we would support reverse-direction drawing... |
7a076538 RK |
240 | if (redrawBase < 1000) { |
241 | redrawBase = tracklen; | |
242 | } | |
fdaf08db | 243 | } |
6ddefbf9 RK |
244 | } |
245 | else { | |
246 | // Last point received. | |
b4df67c9 | 247 | gTrackLayer.drawTrack(); // TODO: we could draw incremmentally if we would support reverse-direction drawing... |
6ddefbf9 RK |
248 | } |
249 | if (!trackLoadStarted) { | |
250 | // We have the most recent point, if present, rest will load async. | |
251 | trackLoadStarted = true; | |
252 | gWaitCounter--; | |
253 | var throwEv = new CustomEvent("prefs-step"); | |
254 | gAction.dispatchEvent(throwEv); | |
582d50fc | 255 | } |
582d50fc RK |
256 | }); |
257 | } | |
23cd2dcc RK |
258 | } |
259 | ||
edc3be71 RK |
260 | var gMap = { |
261 | gl: null, | |
262 | glShaderProgram: null, | |
263 | glVertexPositionAttr: null, | |
264 | glTextureCoordAttr: null, | |
265 | glResolutionAttr: null, | |
266 | glMapTexture: null, | |
e8525b46 | 267 | glTextures: {}, |
d6ff6891 RK |
268 | glTxCleanIntervalID: null, |
269 | glTexturesPerZoomLevel: 0, | |
edc3be71 | 270 | |
dda55132 RK |
271 | activeMap: "osm_mapnik", |
272 | tileSize: 256, | |
273 | maxZoom: 18, // The minimum is 0. | |
274 | zoomFactor: null, | |
275 | pos: { | |
276 | x: 35630000.0, // Current position in the map in pixels at the maximum zoom level (18) | |
277 | y: 23670000.0, // The range is 0-67108864 (2^gMap.maxZoom * gMap.tileSize) | |
278 | z: 5 // This could be fractional if supported being between zoom levels. | |
279 | }, | |
d6ff6891 RK |
280 | baseDim: { // Map width, height and tile size in level 18 pixels. |
281 | wid: null, | |
282 | ht: null, | |
283 | tsize: null, | |
284 | }, | |
aa45a91b | 285 | glDrawRequested: false, // To avoid parallel calls to drawGL(). |
dda55132 | 286 | |
ac6286bd RK |
287 | get width() { return gMap.gl ? gMap.gl.drawingBufferWidth : gGLMapCanvas.width; }, |
288 | get height() { return gMap.gl ? gMap.gl.drawingBufferHeight : gGLMapCanvas.height; }, | |
289 | ||
edc3be71 RK |
290 | getVertShaderSource: function() { |
291 | return 'attribute vec2 aVertexPosition;\n' + | |
292 | 'attribute vec2 aTextureCoord;\n\n' + | |
293 | 'uniform vec2 uResolution;\n\n' + | |
294 | 'varying highp vec2 vTextureCoord;\n\n' + | |
295 | 'void main(void) {\n' + | |
296 | // convert the rectangle from pixels to -1.0 to +1.0 (clipspace) 0.0 to 1.0 | |
297 | ' vec2 clipSpace = aVertexPosition * 2.0 / uResolution - 1.0;\n' + | |
298 | ' gl_Position = vec4(clipSpace * vec2(1, -1), 0, 1);\n' + | |
299 | ' vTextureCoord = aTextureCoord;\n' + | |
300 | '}'; }, | |
d7310ee2 | 301 | getFragShaderSource: function() { |
edc3be71 RK |
302 | return 'varying highp vec2 vTextureCoord;\n\n' + |
303 | 'uniform sampler2D uImage;\n\n' + | |
304 | 'void main(void) {\n' + | |
305 | ' gl_FragColor = texture2D(uImage, vTextureCoord);\n' + | |
306 | '}'; }, | |
307 | ||
308 | initGL: function() { | |
309 | // When called from the event listener, the "this" reference doesn't work, so use the object name. | |
b3a9fc52 | 310 | console.log("Initializing WebGL..."); |
edc3be71 RK |
311 | if (gMap.gl) { |
312 | gMap.gl.viewport(0, 0, gMap.gl.drawingBufferWidth, gMap.gl.drawingBufferHeight); | |
313 | gMap.gl.clearColor(0.0, 0.0, 0.0, 0.5); // Set clear color to black, fully opaque. | |
314 | gMap.gl.clear(gMap.gl.COLOR_BUFFER_BIT|gMap.gl.DEPTH_BUFFER_BIT); // Clear the color. | |
315 | ||
316 | // Create and initialize the shaders. | |
b3a9fc52 | 317 | console.log("Create and compile shaders..."); |
edc3be71 RK |
318 | var vertShader = gMap.gl.createShader(gMap.gl.VERTEX_SHADER); |
319 | var fragShader = gMap.gl.createShader(gMap.gl.FRAGMENT_SHADER); | |
320 | gMap.gl.shaderSource(vertShader, gMap.getVertShaderSource()); | |
321 | // Compile the shader program. | |
322 | gMap.gl.compileShader(vertShader); | |
323 | // See if it compiled successfully. | |
324 | if (!gMap.gl.getShaderParameter(vertShader, gMap.gl.COMPILE_STATUS)) { | |
325 | console.log("An error occurred compiling the vertex shader: " + gMap.gl.getShaderInfoLog(vertShader)); | |
326 | return null; | |
327 | } | |
328 | gMap.gl.shaderSource(fragShader, gMap.getFragShaderSource()); | |
329 | // Compile the shader program. | |
330 | gMap.gl.compileShader(fragShader); | |
331 | // See if it compiled successfully. | |
332 | if (!gMap.gl.getShaderParameter(fragShader, gMap.gl.COMPILE_STATUS)) { | |
333 | console.log("An error occurred compiling the fragment shader: " + gMap.gl.getShaderInfoLog(fragShader)); | |
334 | return null; | |
335 | } | |
ecde0af2 | 336 | |
b3a9fc52 | 337 | console.log("Create and link shader program..."); |
edc3be71 RK |
338 | gMap.glShaderProgram = gMap.gl.createProgram(); |
339 | gMap.gl.attachShader(gMap.glShaderProgram, vertShader); | |
340 | gMap.gl.attachShader(gMap.glShaderProgram, fragShader); | |
341 | gMap.gl.linkProgram(gMap.glShaderProgram); | |
342 | // If creating the shader program failed, alert | |
343 | if (!gMap.gl.getProgramParameter(gMap.glShaderProgram, gMap.gl.LINK_STATUS)) { | |
344 | alert("Unable to initialize the shader program."); | |
345 | } | |
346 | gMap.gl.useProgram(gMap.glShaderProgram); | |
347 | // Get locations of the attributes. | |
348 | gMap.glVertexPositionAttr = gMap.gl.getAttribLocation(gMap.glShaderProgram, "aVertexPosition"); | |
349 | gMap.glTextureCoordAttr = gMap.gl.getAttribLocation(gMap.glShaderProgram, "aTextureCoord"); | |
350 | gMap.glResolutionAttr = gMap.gl.getUniformLocation(gMap.glShaderProgram, "uResolution"); | |
351 | ||
b3a9fc52 | 352 | console.log("Set up vertex buffer..."); |
edc3be71 RK |
353 | var tileVerticesBuffer = gMap.gl.createBuffer(); |
354 | gMap.gl.bindBuffer(gMap.gl.ARRAY_BUFFER, tileVerticesBuffer); | |
355 | // The vertices are the coordinates of the corner points of the square. | |
356 | var vertices = [ | |
357 | 0.0, 0.0, | |
358 | 1.0, 0.0, | |
359 | 0.0, 1.0, | |
360 | 0.0, 1.0, | |
361 | 1.0, 0.0, | |
362 | 1.0, 1.0, | |
363 | ]; | |
364 | gMap.gl.bufferData(gMap.gl.ARRAY_BUFFER, new Float32Array(vertices), gMap.gl.STATIC_DRAW); | |
365 | gMap.gl.enableVertexAttribArray(gMap.glTextureCoordAttr); | |
366 | gMap.gl.vertexAttribPointer(gMap.glTextureCoordAttr, 2, gMap.gl.FLOAT, false, 0, 0); | |
367 | ||
dc047338 | 368 | gMap.loadImageToTexture(gLoadingTile, getTileKey("loading", {x: 0, y: 0, z: 0})); |
edc3be71 RK |
369 | |
370 | gMap.gl.uniform2f(gMap.glResolutionAttr, gGLMapCanvas.width, gGLMapCanvas.height); | |
371 | ||
372 | // Create a buffer for the position of the rectangle corners. | |
b3a9fc52 | 373 | console.log("Set up coord buffer..."); |
edc3be71 RK |
374 | var mapVerticesTextureCoordBuffer = gMap.gl.createBuffer(); |
375 | gMap.gl.bindBuffer(gMap.gl.ARRAY_BUFFER, mapVerticesTextureCoordBuffer); | |
376 | gMap.gl.enableVertexAttribArray(gMap.glVertexPositionAttr); | |
377 | gMap.gl.vertexAttribPointer(gMap.glVertexPositionAttr, 2, gMap.gl.FLOAT, false, 0, 0); | |
d6ff6891 RK |
378 | |
379 | // Call texture cleaning every 30 seconds, for now (is 60 better?). | |
380 | gMap.glTxCleanIntervalID = window.setInterval(gMap.cleanTextures, 30 * 1000); | |
ecde0af2 | 381 | } |
edc3be71 | 382 | |
16e4f664 RK |
383 | if (!gAppInitDone) { |
384 | // We may be called when context was lost and destroyed, | |
385 | // only send event when we are in app startup | |
386 | // (gAppInitDone is set to true right after we return this event). | |
387 | var throwEv = new CustomEvent("mapinit-done"); | |
388 | gAction.dispatchEvent(throwEv); | |
389 | } | |
edc3be71 RK |
390 | }, |
391 | ||
0f6678fa RK |
392 | draw: function() { |
393 | gMap.assembleGL(); | |
aa45a91b | 394 | gTrackLayer.drawTrack(); |
dda55132 | 395 | }, |
ecde0af2 | 396 | |
0f6678fa | 397 | assembleGL: function() { |
dda55132 | 398 | if (!gMap.gl) { return; } |
dda55132 RK |
399 | |
400 | document.getElementById("zoomLevel").textContent = gMap.pos.z; | |
401 | gMap.zoomFactor = Math.pow(2, gMap.maxZoom - gMap.pos.z); | |
d6ff6891 RK |
402 | gMap.baseDim.wid = gMap.gl.drawingBufferWidth * gMap.zoomFactor; |
403 | gMap.baseDim.ht = gMap.gl.drawingBufferHeight * gMap.zoomFactor; | |
404 | gMap.baseDim.tsize = gMap.tileSize * gMap.zoomFactor; | |
dda55132 | 405 | |
d6ff6891 RK |
406 | var xMin = gMap.pos.x - gMap.baseDim.wid / 2; // Corners of the window in level 18 pixels. |
407 | var yMin = gMap.pos.y - gMap.baseDim.ht / 2; | |
408 | var xMax = gMap.pos.x + gMap.baseDim.wid / 2; | |
409 | var yMax = gMap.pos.y + gMap.baseDim.ht / 2; | |
dda55132 RK |
410 | |
411 | if (gMapPrefsLoaded && mainDB) | |
412 | gPrefs.set("position", gMap.pos); | |
413 | ||
dda55132 | 414 | // Go through all the tiles in the map, find out if to draw them and do so. |
d6ff6891 RK |
415 | for (var x = Math.floor(xMin / gMap.baseDim.tsize); x < Math.ceil(xMax / gMap.baseDim.tsize); x++) { |
416 | for (var y = Math.floor(yMin / gMap.baseDim.tsize); y < Math.ceil(yMax / gMap.baseDim.tsize); y++) { | |
0f6678fa RK |
417 | // Only go to loading step if we haven't loaded the texture. |
418 | var coords = {x: x, y: y, z: gMap.pos.z}; | |
419 | var tileKey = getTileKey(gMap.activeMap, normalizeCoords(coords)); | |
dc047338 | 420 | if (!gMap.glTextures[tileKey]) { |
dda55132 | 421 | // Initiate loading/drawing of the actual tile. |
0f6678fa | 422 | gTileService.get(gMap.activeMap, coords, |
b9707ee0 | 423 | function(aImage, aStyle, aCoords, aTileKey) { |
0f6678fa | 424 | // Only actually load if this still applies for the current view. |
dda55132 | 425 | if ((aStyle == gMap.activeMap) && (aCoords.z == gMap.pos.z)) { |
0f6678fa RK |
426 | var URL = window.URL; |
427 | var imgURL = URL.createObjectURL(aImage); | |
428 | var imgObj = new Image(); | |
429 | imgObj.onload = function() { | |
dc047338 | 430 | gMap.loadImageToTexture(imgObj, aTileKey); |
aa45a91b | 431 | gMap.requestDrawGL(); |
0f6678fa | 432 | URL.revokeObjectURL(imgURL); |
dda55132 | 433 | } |
0f6678fa | 434 | imgObj.src = imgURL; |
dda55132 RK |
435 | } |
436 | }); | |
dda55132 RK |
437 | } |
438 | } | |
439 | } | |
aa45a91b RK |
440 | gMap.requestDrawGL(); |
441 | }, | |
442 | ||
443 | requestDrawGL: function() { | |
444 | // Only draw if we're actually visible. | |
445 | // Also, avoid running this multiple times when it could not complete yet. | |
446 | if (document.hidden != true && !gMap.glDrawRequested) { | |
447 | gMap.glDrawRequested = true; | |
448 | window.requestAnimationFrame(gMap.drawGL); | |
5dd2ab70 | 449 | } |
b9707ee0 RK |
450 | }, |
451 | ||
aa45a91b | 452 | drawGL: function(aTimestamp) { |
d6ff6891 RK |
453 | var xMin = gMap.pos.x - gMap.baseDim.wid / 2; // Corners of the window in level 18 pixels. |
454 | var yMin = gMap.pos.y - gMap.baseDim.ht / 2; | |
455 | var xMax = gMap.pos.x + gMap.baseDim.wid / 2; | |
456 | var yMax = gMap.pos.y + gMap.baseDim.ht / 2; | |
b9707ee0 | 457 | |
b9707ee0 | 458 | // Go through all the tiles in the map, find out if to draw them and do so. |
d6ff6891 RK |
459 | for (var x = Math.floor(xMin / gMap.baseDim.tsize); x < Math.ceil(xMax / gMap.baseDim.tsize); x++) { |
460 | for (var y = Math.floor(yMin / gMap.baseDim.tsize); y < Math.ceil(yMax / gMap.baseDim.tsize); y++) { | |
461 | // Rounding the pixel offsets ensures we position the tiles precisely. | |
462 | var xoff = Math.round((x * gMap.baseDim.tsize - xMin) / gMap.zoomFactor); | |
463 | var yoff = Math.round((y * gMap.baseDim.tsize - yMin) / gMap.zoomFactor); | |
dc047338 | 464 | // Draw the tile, first find out the actual texture to use. |
b9707ee0 RK |
465 | var norm = normalizeCoords({x: x, y: y, z: gMap.pos.z}); |
466 | var tileKey = getTileKey(gMap.activeMap, norm); | |
dc047338 RK |
467 | if (!gMap.glTextures[tileKey]) { |
468 | tileKey = getTileKey("loading", {x: 0, y: 0, z: 0}); | |
469 | } | |
470 | gMap.drawTileGL(xoff, yoff, tileKey); | |
b9707ee0 RK |
471 | } |
472 | } | |
aa45a91b | 473 | gMap.glDrawRequested = false; |
dda55132 | 474 | }, |
edc3be71 | 475 | |
ac6286bd RK |
476 | resizeAndDraw: function() { |
477 | var viewportWidth = Math.min(window.innerWidth, window.outerWidth); | |
478 | var viewportHeight = Math.min(window.innerHeight, window.outerHeight); | |
479 | if (gGLMapCanvas && gTrackCanvas) { | |
480 | gGLMapCanvas.width = viewportWidth; | |
481 | gGLMapCanvas.height = viewportHeight; | |
482 | gTrackCanvas.width = viewportWidth; | |
483 | gTrackCanvas.height = viewportHeight; | |
484 | if (gMap.gl) { | |
485 | // Size viewport to canvas size. | |
486 | gMap.gl.viewport(0, 0, gMap.gl.drawingBufferWidth, gMap.gl.drawingBufferHeight); | |
487 | // Clear the color. | |
488 | gMap.gl.clear(gMap.gl.COLOR_BUFFER_BIT); | |
489 | // Make sure the vertex shader get the right resolution. | |
490 | gMap.gl.uniform2f(gMap.glResolutionAttr, gGLMapCanvas.width, gGLMapCanvas.height); | |
d6ff6891 RK |
491 | // Prepare recalculation of textures to keep for one zoom level. |
492 | gMap.glTexturesPerZoomLevel = 0; | |
ac6286bd RK |
493 | } |
494 | gMap.draw(); | |
495 | showUI(); | |
496 | } | |
dda55132 RK |
497 | }, |
498 | ||
dc047338 | 499 | drawTileGL: function(aLeft, aRight, aTileKey) { |
b9707ee0 | 500 | gMap.gl.activeTexture(gMap.gl.TEXTURE0); |
dc047338 | 501 | gMap.gl.bindTexture(gMap.gl.TEXTURE_2D, gMap.glTextures[aTileKey]); |
b9707ee0 RK |
502 | // Set uImage to refer to TEXTURE0 |
503 | gMap.gl.uniform1i(gMap.gl.getUniformLocation(gMap.glShaderProgram, "uImage"), 0); | |
dda55132 RK |
504 | var x_start = aLeft; |
505 | var i_width = gMap.tileSize; | |
506 | var y_start = aRight; | |
507 | var i_height = gMap.tileSize; | |
edc3be71 RK |
508 | var textureCoordinates = [ |
509 | x_start, y_start, | |
510 | x_start + i_width, y_start, | |
511 | x_start, y_start + i_height, | |
512 | x_start, y_start + i_height, | |
513 | x_start + i_width, y_start, | |
514 | x_start + i_width, y_start + i_height, | |
515 | ]; | |
516 | gMap.gl.bufferData(gMap.gl.ARRAY_BUFFER, new Float32Array(textureCoordinates), gMap.gl.STATIC_DRAW); | |
edc3be71 RK |
517 | |
518 | // There are 6 indices in textureCoordinates. | |
519 | gMap.gl.drawArrays(gMap.gl.TRIANGLES, 0, 6); | |
e8525b46 RK |
520 | }, |
521 | ||
dc047338 | 522 | loadImageToTexture: function(aImage, aTileKey) { |
e8525b46 | 523 | // Create and bind texture. |
dc047338 RK |
524 | gMap.glTextures[aTileKey] = gMap.gl.createTexture(); |
525 | gMap.gl.bindTexture(gMap.gl.TEXTURE_2D, gMap.glTextures[aTileKey]); | |
e8525b46 RK |
526 | // Set params for how the texture minifies and magnifies (wrap params are not needed as we're power-of-two). |
527 | gMap.gl.texParameteri(gMap.gl.TEXTURE_2D, gMap.gl.TEXTURE_MIN_FILTER, gMap.gl.NEAREST); | |
528 | gMap.gl.texParameteri(gMap.gl.TEXTURE_2D, gMap.gl.TEXTURE_MAG_FILTER, gMap.gl.NEAREST); | |
529 | // Upload the image into the texture. | |
530 | gMap.gl.texImage2D(gMap.gl.TEXTURE_2D, 0, gMap.gl.RGBA, gMap.gl.RGBA, gMap.gl.UNSIGNED_BYTE, aImage); | |
531 | }, | |
d6ff6891 RK |
532 | |
533 | cleanTextures: function() { | |
534 | // Get rid of unneeded textures to save memory. | |
535 | // TODO: Be less aggressive, maybe keep neighboring zoom levels (but x/y coords there are zoom-specific). | |
536 | if (!gMap.glTexturesPerZoomLevel) { | |
537 | // Calculate how many textures we need to keep for one zoom level. | |
538 | // ceil(width/size) gives us the minimum, keep one on either side as well. | |
539 | gMap.glTexturesPerZoomLevel = | |
540 | Math.ceil(gMap.gl.drawingBufferWidth / gMap.tileSize + 2) * | |
541 | Math.ceil(gMap.gl.drawingBufferHeight / gMap.tileSize + 2); | |
542 | console.log("Keeping " + gMap.glTexturesPerZoomLevel + " textures per level"); | |
543 | } | |
544 | if (Object.keys(gMap.glTextures).length > gMap.glTexturesPerZoomLevel) { | |
545 | console.log("Cleaning textures... (have " + Object.keys(gMap.glTextures).length + " atm)"); | |
546 | ||
547 | // Find coordinate ranges for tiles to keep. | |
548 | var tMin = normalizeCoords({x: Math.floor((gMap.pos.x - gMap.baseDim.wid / 2) / gMap.baseDim.tsize) - 1, | |
549 | y: Math.floor((gMap.pos.y - gMap.baseDim.ht / 2) / gMap.baseDim.tsize) - 1, | |
550 | z: gMap.pos.z}); | |
551 | var tMax = normalizeCoords({x: Math.ceil((gMap.pos.x + gMap.baseDim.wid / 2) / gMap.baseDim.tsize) + 1, | |
552 | y: Math.ceil((gMap.pos.y + gMap.baseDim.ht / 2) / gMap.baseDim.tsize) + 1, | |
553 | z: gMap.pos.z}); | |
554 | console.log("In range: " + tMin.x + "," + tMin.y + "," + tMin.z + " - " + tMax.x + "," + tMax.y + "," + tMax.z); | |
bb752fc4 RK |
555 | for (var tileKey in gMap.glTextures) { |
556 | var keyMatches = tileKey.match(/([^:]+)::(\d+),(\d+),(\d+)/); | |
d6ff6891 RK |
557 | if (keyMatches && keyMatches[1] != "loading") { |
558 | var txData = { | |
559 | style: keyMatches[1], | |
560 | x: keyMatches[2], | |
561 | y: keyMatches[3], | |
562 | z: keyMatches[4], | |
563 | } | |
564 | var delTx = false; | |
565 | if (txData.style != gMap.activeMap) { delTx = true; console.log("Different map style: " + txData.style); } | |
566 | if (!delTx && (txData.z < tMin.z || txData.z > tMax.z)) { delTx = true; console.log("Out-of-range zoom: " + txData.z); } | |
567 | if (tMin.x < tMax.x) { | |
568 | if (!delTx && (txData.x < tMin.x || txData.x > tMax.x)) { delTx = true; console.log("Out-of-range X: " + txData.x); } | |
569 | } | |
570 | else { | |
571 | // We are crossing over the 0 coordinate! | |
572 | if (!delTx && (txData.x < tMin.x && txData.x > tMax.x)) { delTx = true; console.log("Out-of-range X: " + txData.x); } | |
573 | } | |
574 | if (tMin.y < tMax.y) { | |
575 | if (!delTx && (txData.y < tMin.y || txData.y > tMax.y)) { delTx = true; console.log("Out-of-range Y: " + txData.y); } | |
576 | } | |
577 | else { | |
578 | // We are crossing over the 0 coordinate! | |
579 | if (!delTx && (txData.y < tMin.y && txData.y > tMax.y)) { delTx = true; console.log("Out-of-range Y: " + txData.y); } | |
580 | } | |
581 | if (delTx) { | |
582 | // Delete texture from GL and from the array we are holding. | |
bb752fc4 RK |
583 | gMap.gl.deleteTexture(gMap.glTextures[tileKey]); |
584 | delete gMap.glTextures[tileKey]; | |
d6ff6891 RK |
585 | } |
586 | } | |
587 | } | |
e4840ddc | 588 | console.log("Cleaning complete, " + Object.keys(gMap.glTextures).length + " textures left"); |
d6ff6891 RK |
589 | } |
590 | }, | |
16e4f664 | 591 | |
aa45a91b RK |
592 | // Using scale(x, y) together with drawing old data on scaled canvas would be an improvement for zooming. |
593 | // See https://developer.mozilla.org/en-US/docs/Canvas_tutorial/Transformations#Scaling | |
594 | ||
595 | zoomIn: function() { | |
596 | if (gMap.pos.z < gMap.maxZoom) { | |
597 | gMap.pos.z++; | |
598 | gMap.draw(); | |
599 | } | |
600 | }, | |
601 | ||
602 | zoomOut: function() { | |
603 | if (gMap.pos.z > 0) { | |
604 | gMap.pos.z--; | |
605 | gMap.draw(); | |
606 | } | |
607 | }, | |
608 | ||
609 | zoomTo: function(aTargetLevel) { | |
610 | aTargetLevel = parseInt(aTargetLevel); | |
611 | if (aTargetLevel >= 0 && aTargetLevel <= gMap.maxZoom) { | |
612 | gMap.pos.z = aTargetLevel; | |
613 | gMap.draw(); | |
614 | } | |
615 | }, | |
616 | ||
617 | setActiveMap: function(aStyle) { | |
618 | gMap.activeMap = aStyle; | |
619 | gPrefs.set("active_map_style", gMap.activeMap); | |
620 | document.getElementById("copyright").innerHTML = | |
621 | gMapStyles[gMap.activeMap].copyright; | |
622 | if (!gWaitCounter) { // Only do this when prefs are loaded already. | |
623 | showUI(); | |
624 | gMap.draw(); | |
625 | } | |
626 | }, | |
627 | ||
16e4f664 RK |
628 | handleContextLost: function(event) { |
629 | event.preventDefault(); | |
630 | // GL context is gone, let's reset everything that depends on it. | |
631 | clearInterval(gMap.glTxCleanIntervalID); | |
632 | gMap.glTextures = {}; | |
633 | }, | |
634 | ||
635 | handleContextRestored: function(event) { | |
636 | // When GL context is back, init GL again and draw. | |
637 | gMap.initGL(); | |
638 | gMap.draw(); | |
639 | }, | |
ecde0af2 RK |
640 | } |
641 | ||
aa45a91b RK |
642 | var gTrackLayer = { |
643 | context: null, | |
644 | curPosMapCache: undefined, | |
645 | lastDrawnPoint: null, | |
b4df67c9 RK |
646 | lastRequestedIndex: null, // may not have been actually drawn... |
647 | drawRequested: false, | |
648 | restartDrawing: true, | |
68ca4617 | 649 | |
b4df67c9 | 650 | maxDrawTime: 10, // max time allowed for drawing a section, in ms - 10 means we can do 100 fps smoothly |
68ca4617 RK |
651 | trackWidth: 2, // pixels |
652 | trackColor: "#FF0000", | |
653 | curLocSize: 6, // pixels | |
654 | curLocColor: "#A00000", | |
aa45a91b | 655 | |
b4df67c9 RK |
656 | drawTrack: function(needRestart = true) { |
657 | // TODO: figure out if we can support reverse drawing while initially loading the track. | |
658 | // Only draw if we're actually visible. | |
659 | // Also, avoid running this multiple times when it could not complete yet. | |
660 | if (needRestart) { gTrackLayer.restartDrawing = true; } | |
661 | if (gTrackLayer.context && document.hidden != true && !gTrackLayer.drawRequested) { | |
662 | gTrackLayer.drawRequested = true; | |
663 | window.requestAnimationFrame(gTrackLayer.drawTrackSection); | |
664 | } | |
665 | }, | |
666 | ||
667 | drawTrackSection: function(aTimestamp) { | |
668 | var start = performance.now(); | |
669 | if (gTrackLayer.restartDrawing) { | |
670 | gTrackLayer.lastRequestedIndex = 0; | |
aa45a91b | 671 | gTrackLayer.lastDrawnPoint = null; |
b4df67c9 | 672 | gTrackLayer.restartDrawing = false; |
aa45a91b RK |
673 | gTrackLayer.curPosMapCache = undefined; |
674 | gTrackLayer.context.clearRect(0, 0, gTrackCanvas.width, gTrackCanvas.height); | |
b4df67c9 RK |
675 | } |
676 | if (gTrack.length && (performance.now() < start + gTrackLayer.maxDrawTime)) { | |
677 | for (; gTrackLayer.lastRequestedIndex < gTrack.length; gTrackLayer.lastRequestedIndex++) { | |
678 | gTrackLayer.drawTrackPoint(gTrackLayer.lastRequestedIndex); | |
679 | if (performance.now() >= start + gTrackLayer.maxDrawTime) { | |
680 | // Break out of the loop if we are over the max allowed time, we'll continue in the next rAF (see below). | |
9292a1b7 | 681 | gTrackLayer.drawTrackPoint(null); |
b4df67c9 | 682 | break; |
aa45a91b RK |
683 | } |
684 | } | |
685 | } | |
b4df67c9 RK |
686 | // If we still have work to do and we're still visible, continue drawing. |
687 | if ((gTrackLayer.lastRequestedIndex + 1 < gTrack.length) && gTrackLayer.context && (document.hidden != true)) { | |
688 | window.requestAnimationFrame(gTrackLayer.drawTrackSection); | |
689 | } | |
690 | gTrackLayer.drawRequested = false; | |
aa45a91b | 691 | }, |
b5e49b95 | 692 | |
b4df67c9 RK |
693 | drawTrackPoint: function(aIndex) { |
694 | gTrackLayer.running = true; | |
9292a1b7 RK |
695 | if (!aIndex && aIndex !== 0) { |
696 | // We can be called this way to make sure we draw an actual line up to where we are right now. | |
697 | if (gTrackLayer.lastDrawnPoint && gTrackLayer.lastDrawnPoint.optimized) { | |
698 | gTrackLayer.context.stroke(); | |
699 | gTrackLayer.lastDrawnPoint.optimized = false; | |
700 | } | |
701 | return; | |
702 | } | |
b4df67c9 RK |
703 | var trackpoint = {"worldpos": gps2xy(gTrack[aIndex].coords.latitude, gTrack[aIndex].coords.longitude)}; |
704 | var isLastPoint = (aIndex + 1 >= gTrack.length || gTrack[aIndex+1].beginSegment); | |
aa45a91b RK |
705 | var update_drawnpoint = true; |
706 | // lastPoint is for optimizing (not actually executing the draw until the last) | |
b4df67c9 RK |
707 | trackpoint.segmentEnd = (isLastPoint === true); |
708 | trackpoint.optimized = (isLastPoint === false); | |
aa45a91b RK |
709 | trackpoint.mappos = {x: Math.round((trackpoint.worldpos.x - gMap.pos.x) / gMap.zoomFactor + gMap.width / 2), |
710 | y: Math.round((trackpoint.worldpos.y - gMap.pos.y) / gMap.zoomFactor + gMap.height / 2)}; | |
711 | trackpoint.skip_drawing = false; | |
712 | if (gTrackLayer.lastDrawnPoint) { | |
713 | // Lines completely outside the current display should not be drawn. | |
714 | if ((trackpoint.mappos.x < 0 && gTrackLayer.lastDrawnPoint.mappos.x < 0) || | |
715 | (trackpoint.mappos.x > gMap.width && gTrackLayer.lastDrawnPoint.mappos.x > gMap.width) || | |
716 | (trackpoint.mappos.y < 0 && gTrackLayer.lastDrawnPoint.mappos.y < 0) || | |
717 | (trackpoint.mappos.y > gMap.height && gTrackLayer.lastDrawnPoint.mappos.y > gMap.height)) { | |
718 | trackpoint.skip_drawing = true; | |
719 | } | |
720 | } | |
721 | if (!gTrackLayer.lastDrawnPoint || !gTrackLayer.lastDrawnPoint.optimized) { | |
68ca4617 | 722 | gTrackLayer.context.strokeStyle = gTrackLayer.trackColor; |
aa45a91b | 723 | gTrackLayer.context.fillStyle = gTrackLayer.context.strokeStyle; |
68ca4617 | 724 | gTrackLayer.context.lineWidth = gTrackLayer.trackWidth; |
aa45a91b RK |
725 | gTrackLayer.context.lineCap = "round"; |
726 | gTrackLayer.context.lineJoin = "round"; | |
727 | } | |
728 | // This breaks optimiziation, so make sure to reset optimization. | |
729 | if (trackpoint.skip_drawing || !gTrackLayer.lastDrawnPoint) { | |
730 | trackpoint.optimized = false; | |
731 | // Close path if one was open. | |
732 | if (gTrackLayer.lastDrawnPoint && gTrackLayer.lastDrawnPoint.optimized) { | |
733 | gTrackLayer.context.stroke(); | |
734 | } | |
735 | } | |
736 | if (!trackpoint.skip_drawing) { | |
737 | if (gTrackLayer.lastDrawnPoint && gTrackLayer.lastDrawnPoint.skip_drawing && !gTrackLayer.lastDrawnPoint.segmentEnd) { | |
738 | // If the last point was skipped but the current one isn't, draw a segment start | |
739 | // for the off-screen previous one as well as a connection line. | |
740 | gTrackLayer.context.beginPath(); | |
741 | gTrackLayer.context.arc(gTrackLayer.lastDrawnPoint.mappos.x, gTrackLayer.lastDrawnPoint.mappos.y, | |
742 | gTrackLayer.context.lineWidth, 0, Math.PI * 2, false); | |
743 | gTrackLayer.context.fill(); | |
744 | gTrackLayer.context.lineTo(trackpoint.mappos.x, trackpoint.mappos.y); | |
745 | } | |
746 | else if (!gTrackLayer.lastDrawnPoint || !gTrackLayer.lastDrawnPoint.optimized) { | |
747 | // Start drawing a segment with the current point. | |
748 | gTrackLayer.context.beginPath(); | |
749 | gTrackLayer.context.arc(trackpoint.mappos.x, trackpoint.mappos.y, | |
750 | gTrackLayer.context.lineWidth, 0, Math.PI * 2, false); | |
751 | gTrackLayer.context.fill(); | |
752 | } | |
753 | else if (!trackpoint.segmentEnd && gTrackLayer.lastDrawnPoint && | |
754 | (Math.abs(gTrackLayer.lastDrawnPoint.mappos.x - trackpoint.mappos.x) <= 1) && | |
755 | (Math.abs(gTrackLayer.lastDrawnPoint.mappos.y - trackpoint.mappos.y) <= 1)) { | |
756 | // We would draw the same or almost the same point, don't do any actual drawing. | |
757 | update_drawnpoint = false; | |
758 | } | |
759 | else { | |
760 | // Continue drawing segment, close if needed. | |
761 | gTrackLayer.context.lineTo(trackpoint.mappos.x, trackpoint.mappos.y); | |
762 | if (!trackpoint.optimized) | |
763 | gTrackLayer.context.stroke(); | |
764 | } | |
765 | } | |
766 | if (update_drawnpoint) { | |
767 | gTrackLayer.lastDrawnPoint = trackpoint; | |
768 | } | |
769 | }, | |
23cd2dcc | 770 | |
aa45a91b | 771 | drawCurrentLocation: function(trackPoint) { |
b4df67c9 RK |
772 | // Only run this when visible and we are not drawing a track right now. |
773 | if (gTrackLayer.context && document.hidden != true && !gTrackLayer.drawRequested) { | |
774 | var locpoint = gps2xy(trackPoint.coords.latitude, trackPoint.coords.longitude); | |
68ca4617 | 775 | var circleRadius = Math.round(gTrackLayer.curLocSize / 2); |
b4df67c9 RK |
776 | var mappos = {x: Math.round((locpoint.x - gMap.pos.x) / gMap.zoomFactor + gMap.width / 2), |
777 | y: Math.round((locpoint.y - gMap.pos.y) / gMap.zoomFactor + gMap.height / 2)}; | |
778 | ||
779 | gTrackLayer.undrawCurrentLocation(); | |
780 | ||
781 | // Cache overdrawn area. | |
782 | gTrackLayer.curPosMapCache = | |
783 | {point: locpoint, | |
784 | radius: circleRadius, | |
785 | data: gTrackLayer.context.getImageData(mappos.x - circleRadius, | |
786 | mappos.y - circleRadius, | |
787 | circleRadius * 2, circleRadius * 2)}; | |
788 | ||
68ca4617 | 789 | gTrackLayer.context.strokeStyle = gTrackLayer.curLocColor; |
b4df67c9 RK |
790 | gTrackLayer.context.fillStyle = gTrackLayer.context.strokeStyle; |
791 | gTrackLayer.context.beginPath(); | |
792 | gTrackLayer.context.arc(mappos.x, mappos.y, | |
793 | circleRadius, 0, Math.PI * 2, false); | |
794 | gTrackLayer.context.fill(); | |
795 | } | |
aa45a91b | 796 | }, |
23cd2dcc | 797 | |
aa45a91b | 798 | undrawCurrentLocation: function() { |
b4df67c9 RK |
799 | // Only run this when visible and we are not drawing a track right now. |
800 | if (gTrackLayer.context && document.hidden != true && !gTrackLayer.drawRequested) { | |
801 | if (gTrackLayer.curPosMapCache) { | |
802 | var oldpoint = gTrackLayer.curPosMapCache.point; | |
803 | var oldmp = {x: Math.round((oldpoint.x - gMap.pos.x) / gMap.zoomFactor + gMap.width / 2), | |
804 | y: Math.round((oldpoint.y - gMap.pos.y) / gMap.zoomFactor + gMap.height / 2)}; | |
805 | gTrackLayer.context.putImageData(gTrackLayer.curPosMapCache.data, | |
806 | oldmp.x - gTrackLayer.curPosMapCache.radius, | |
807 | oldmp.y - gTrackLayer.curPosMapCache.radius); | |
808 | gTrackLayer.curPosMapCache = undefined; | |
809 | } | |
aa45a91b | 810 | } |
1222624d RK |
811 | } |
812 | } | |
813 | ||
55c4a0b7 | 814 | function gps2xy(aLatitude, aLongitude) { |
dda55132 | 815 | var maxZoomFactor = Math.pow(2, gMap.maxZoom) * gMap.tileSize; |
55c4a0b7 RK |
816 | var convLat = aLatitude * Math.PI / 180; |
817 | var rawY = (1 - Math.log(Math.tan(convLat) + | |
818 | 1 / Math.cos(convLat)) / Math.PI) / 2 * maxZoomFactor; | |
819 | var rawX = (aLongitude + 180) / 360 * maxZoomFactor; | |
820 | return {x: Math.round(rawX), | |
821 | y: Math.round(rawY)}; | |
822 | } | |
823 | ||
824 | function xy2gps(aX, aY) { | |
dda55132 | 825 | var maxZoomFactor = Math.pow(2, gMap.maxZoom) * gMap.tileSize; |
55c4a0b7 RK |
826 | var n = Math.PI - 2 * Math.PI * aY / maxZoomFactor; |
827 | return {latitude: 180 / Math.PI * | |
828 | Math.atan(0.5 * (Math.exp(n) - Math.exp(-n))), | |
829 | longitude: aX / maxZoomFactor * 360 - 180}; | |
830 | } | |
831 | ||
23cd2dcc RK |
832 | // A sane mod function that works for negative numbers. |
833 | // Returns a % b. | |
834 | function mod(a, b) { | |
835 | return ((a % b) + b) % b; | |
836 | } | |
837 | ||
a8634d37 RK |
838 | function normalizeCoords(aCoords) { |
839 | var zoomFactor = Math.pow(2, aCoords.z); | |
840 | return {x: mod(aCoords.x, zoomFactor), | |
841 | y: mod(aCoords.y, zoomFactor), | |
842 | z: aCoords.z}; | |
23cd2dcc RK |
843 | } |
844 | ||
b9707ee0 RK |
845 | function getTileKey(aStyle, aNormalizedCoords) { |
846 | return aStyle + "::" + | |
847 | aNormalizedCoords.x + "," + | |
848 | aNormalizedCoords.y + "," + | |
849 | aNormalizedCoords.z; | |
850 | } | |
851 | ||
23cd2dcc RK |
852 | // Returns true if the tile is outside the current view. |
853 | function isOutsideWindow(t) { | |
854 | var pos = decodeIndex(t); | |
23cd2dcc | 855 | |
dda55132 | 856 | var zoomFactor = Math.pow(2, gMap.maxZoom - pos.z); |
ac6286bd RK |
857 | var wid = gMap.width * zoomFactor; |
858 | var ht = gMap.height * zoomFactor; | |
23cd2dcc | 859 | |
4b1d0915 RK |
860 | pos.x *= zoomFactor; |
861 | pos.y *= zoomFactor; | |
23cd2dcc | 862 | |
dda55132 RK |
863 | var sz = gMap.tileSize * zoomFactor; |
864 | if (pos.x > gMap.pos.x + wid / 2 || pos.y > gMap.pos.y + ht / 2 || | |
865 | pos.x + sz < gMap.pos.x - wid / 2 || pos.y - sz < gMap.pos.y - ht / 2) | |
23cd2dcc RK |
866 | return true; |
867 | return false; | |
868 | } | |
869 | ||
870 | function encodeIndex(x, y, z) { | |
a8634d37 | 871 | var norm = normalizeCoords({x: x, y: y, z: z}); |
23cd2dcc RK |
872 | return norm.x + "," + norm.y + "," + norm.z; |
873 | } | |
874 | ||
875 | function decodeIndex(encodedIdx) { | |
4b1d0915 RK |
876 | var ind = encodedIdx.split(",", 3); |
877 | return {x: ind[0], y: ind[1], z: ind[2]}; | |
23cd2dcc RK |
878 | } |
879 | ||
7a076538 RK |
880 | function calcTrackDuration() { |
881 | // Get the duration of the track in s. | |
882 | var tDuration = 0; | |
883 | if (gTrack.length > 1) { | |
884 | for (var i = 1; i < gTrack.length; i++) { | |
8f63227b RK |
885 | if (!gTrack[i].beginSegment) { |
886 | tDuration += (gTrack[i].time - gTrack[i-1].time); | |
887 | } | |
7a076538 RK |
888 | } |
889 | } | |
890 | return Math.round(tDuration / 1000); // The timestamps are in ms but we return seconds. | |
891 | } | |
892 | ||
893 | function calcTrackLength() { | |
894 | // Get the length of the track in km. | |
895 | var tLength = 0; | |
896 | if (gTrack.length > 1) { | |
897 | for (var i = 1; i < gTrack.length; i++) { | |
8f63227b RK |
898 | if (!gTrack[i].beginSegment) { |
899 | tLength += getPointDistance(gTrack[i-1].coords, gTrack[i].coords); | |
900 | } | |
7a076538 RK |
901 | } |
902 | } | |
903 | return tLength; | |
904 | } | |
905 | ||
906 | function getPointDistance(aGPSPoint1, aGPSPoint2) { | |
907 | // Get the distance in km between the two given GPS points. | |
908 | // See http://stackoverflow.com/questions/365826/calculate-distance-between-2-gps-coordinates | |
909 | // Earth is almost exactly a sphere and we calculate small distances on the surface, so we can do spherical great-circle math. | |
910 | // Also see http://en.wikipedia.org/wiki/Great-circle_distance | |
911 | var R = 6371; // km | |
912 | var dLat = deg2rad(aGPSPoint2.latitude - aGPSPoint1.latitude); | |
913 | var dLon = deg2rad(aGPSPoint2.longitude - aGPSPoint1.longitude); | |
914 | var lat1 = deg2rad(aGPSPoint1.latitude); | |
915 | var lat2 = deg2rad(aGPSPoint2.latitude); | |
916 | ||
917 | var a = Math.sin(dLat/2) * Math.sin(dLat/2) + | |
918 | Math.sin(dLon/2) * Math.sin(dLon/2) * Math.cos(lat1) * Math.cos(lat2); | |
919 | var c = 2 * Math.atan2(Math.sqrt(a), Math.sqrt(1-a)); | |
920 | return R * c; | |
921 | } | |
922 | ||
923 | function deg2rad(aDegreeValue) { | |
924 | // Convert an angle in degrees to radiants. | |
925 | return aDegreeValue * (Math.PI / 180); | |
926 | } | |
927 | ||
23cd2dcc RK |
928 | var mapEvHandler = { |
929 | handleEvent: function(aEvent) { | |
930 | var touchEvent = aEvent.type.indexOf('touch') != -1; | |
931 | ||
306ae634 RK |
932 | if (touchEvent) { |
933 | aEvent.stopPropagation(); | |
934 | } | |
935 | ||
8389557a RK |
936 | // Bail out if the event is happening on an input. |
937 | if (aEvent.target.tagName.toLowerCase() == "input") | |
938 | return; | |
939 | ||
1222624d RK |
940 | // Bail out on unwanted map moves, but not zoom or keyboard events. |
941 | if (aEvent.type.indexOf("mouse") === 0 || aEvent.type.indexOf("touch") === 0) { | |
23cd2dcc RK |
942 | // Bail out if this is neither a touch nor left-click. |
943 | if (!touchEvent && aEvent.button != 0) | |
944 | return; | |
945 | ||
946 | // Bail out if the started touch can't be found. | |
4b12da3a | 947 | if (touchEvent && gDragging && |
aec007a6 | 948 | !aEvent.targetTouches.item(0)) |
23cd2dcc RK |
949 | return; |
950 | } | |
951 | ||
952 | var coordObj = touchEvent ? | |
aec007a6 | 953 | aEvent.targetTouches.item(0) : |
23cd2dcc RK |
954 | aEvent; |
955 | ||
956 | switch (aEvent.type) { | |
957 | case "mousedown": | |
958 | case "touchstart": | |
959 | if (touchEvent) { | |
517c0099 RK |
960 | if (aEvent.targetTouches.length == 2) { |
961 | gPinchStartWidth = Math.sqrt( | |
962 | Math.pow(aEvent.targetTouches.item(1).clientX - | |
963 | aEvent.targetTouches.item(0).clientX, 2) + | |
964 | Math.pow(aEvent.targetTouches.item(1).clientY - | |
965 | aEvent.targetTouches.item(0).clientY, 2) | |
966 | ); | |
967 | } | |
aec007a6 | 968 | coordObj = aEvent.targetTouches.item(0); |
23cd2dcc | 969 | } |
ac6286bd RK |
970 | var x = coordObj.clientX - gGLMapCanvas.offsetLeft; |
971 | var y = coordObj.clientY - gGLMapCanvas.offsetTop; | |
b395419b | 972 | |
23cd2dcc RK |
973 | if (touchEvent || aEvent.button === 0) { |
974 | gDragging = true; | |
975 | } | |
976 | gLastMouseX = x; | |
977 | gLastMouseY = y; | |
7a549148 | 978 | showUI(); |
68ca4617 | 979 | gLastMoveAction = performance.now(); |
23cd2dcc RK |
980 | break; |
981 | case "mousemove": | |
982 | case "touchmove": | |
517c0099 RK |
983 | if (touchEvent && aEvent.targetTouches.length == 2) { |
984 | curPinchStartWidth = Math.sqrt( | |
985 | Math.pow(aEvent.targetTouches.item(1).clientX - | |
986 | aEvent.targetTouches.item(0).clientX, 2) + | |
987 | Math.pow(aEvent.targetTouches.item(1).clientY - | |
988 | aEvent.targetTouches.item(0).clientY, 2) | |
989 | ); | |
003d56f8 RK |
990 | if (!gPinchStartWidth) |
991 | gPinchStartWidth = curPinchStartWidth; | |
d07d7abc | 992 | |
517c0099 RK |
993 | if (gPinchStartWidth / curPinchStartWidth > 1.7 || |
994 | gPinchStartWidth / curPinchStartWidth < 0.6) { | |
dda55132 RK |
995 | var newZoomLevel = gMap.pos.z + (gPinchStartWidth < curPinchStartWidth ? 1 : -1); |
996 | if ((newZoomLevel >= 0) && (newZoomLevel <= gMap.maxZoom)) { | |
517c0099 RK |
997 | // Calculate new center of the map - preserve middle of pinch. |
998 | // This means that pixel distance between old center and middle | |
999 | // must equal pixel distance of new center and middle. | |
1000 | var x = (aEvent.targetTouches.item(1).clientX + | |
1001 | aEvent.targetTouches.item(0).clientX) / 2 - | |
ac6286bd | 1002 | gGLMapCanvas.offsetLeft; |
517c0099 RK |
1003 | var y = (aEvent.targetTouches.item(1).clientY + |
1004 | aEvent.targetTouches.item(0).clientY) / 2 - | |
ac6286bd | 1005 | gGLMapCanvas.offsetTop; |
517c0099 RK |
1006 | |
1007 | // Zoom factor after this action. | |
dda55132 | 1008 | var newZoomFactor = Math.pow(2, gMap.maxZoom - newZoomLevel); |
ac6286bd RK |
1009 | gMap.pos.x -= (x - gMap.width / 2) * (newZoomFactor - gMap.zoomFactor); |
1010 | gMap.pos.y -= (y - gMap.height / 2) * (newZoomFactor - gMap.zoomFactor); | |
517c0099 RK |
1011 | |
1012 | if (gPinchStartWidth < curPinchStartWidth) | |
aa45a91b | 1013 | gMap.zoomIn(); |
517c0099 | 1014 | else |
aa45a91b | 1015 | gMap.zoomOut(); |
003d56f8 RK |
1016 | |
1017 | // Reset pinch start width and start another pinch gesture. | |
1018 | gPinchStartWidth = null; | |
517c0099 RK |
1019 | } |
1020 | } | |
d07d7abc | 1021 | // If we are in a pinch, do not drag. |
517c0099 RK |
1022 | break; |
1023 | } | |
ac6286bd RK |
1024 | var x = coordObj.clientX - gGLMapCanvas.offsetLeft; |
1025 | var y = coordObj.clientY - gGLMapCanvas.offsetTop; | |
23cd2dcc RK |
1026 | if (gDragging === true) { |
1027 | var dX = x - gLastMouseX; | |
1028 | var dY = y - gLastMouseY; | |
dda55132 RK |
1029 | gMap.pos.x -= dX * gMap.zoomFactor; |
1030 | gMap.pos.y -= dY * gMap.zoomFactor; | |
0f6678fa | 1031 | gMap.draw(); |
7a549148 | 1032 | showUI(); |
23cd2dcc RK |
1033 | } |
1034 | gLastMouseX = x; | |
1035 | gLastMouseY = y; | |
68ca4617 | 1036 | gLastMoveAction = performance.now(); |
23cd2dcc RK |
1037 | break; |
1038 | case "mouseup": | |
1039 | case "touchend": | |
d07d7abc | 1040 | gPinchStartWidth = null; |
23cd2dcc | 1041 | gDragging = false; |
7a549148 | 1042 | showUI(); |
23cd2dcc RK |
1043 | break; |
1044 | case "mouseout": | |
1045 | case "touchcancel": | |
1046 | case "touchleave": | |
1047 | //gDragging = false; | |
1048 | break; | |
5fb31b29 RK |
1049 | case "wheel": |
1050 | // If we'd want pixels, we'd need to calc up using aEvent.deltaMode. | |
1051 | // See https://developer.mozilla.org/en-US/docs/Mozilla_event_reference/wheel | |
1052 | ||
1053 | // Only accept (non-null) deltaY values | |
1054 | if (!aEvent.deltaY) | |
1055 | break; | |
23cd2dcc | 1056 | |
55c4a0b7 RK |
1057 | // Debug output: "coordinates" of the point the mouse was over. |
1058 | /* | |
ac6286bd RK |
1059 | var ptCoord = {x: gMap.pos.x + (x - gMap.width / 2) * gMap.zoomFactor, |
1060 | y: gMap.pos.y + (x - gMap.height / 2) * gMap.zoomFactor}; | |
55c4a0b7 RK |
1061 | var gpsCoord = xy2gps(ptCoord.x, ptCoord.y); |
1062 | var pt2Coord = gps2xy(gpsCoord.latitude, gpsCoord.longitude); | |
915d4271 RK |
1063 | console.log(ptCoord.x + "/" + ptCoord.y + " - " + |
1064 | gpsCoord.latitude + "/" + gpsCoord.longitude + " - " + | |
1065 | pt2Coord.x + "/" + pt2Coord.y); | |
55c4a0b7 | 1066 | */ |
4b1d0915 | 1067 | |
dda55132 RK |
1068 | var newZoomLevel = gMap.pos.z + (aEvent.deltaY < 0 ? 1 : -1); |
1069 | if ((newZoomLevel >= 0) && (newZoomLevel <= gMap.maxZoom)) { | |
4b1d0915 RK |
1070 | // Calculate new center of the map - same point stays under the mouse. |
1071 | // This means that the pixel distance between the old center and point | |
1072 | // must equal the pixel distance of the new center and that point. | |
ac6286bd RK |
1073 | var x = coordObj.clientX - gGLMapCanvas.offsetLeft; |
1074 | var y = coordObj.clientY - gGLMapCanvas.offsetTop; | |
4b1d0915 RK |
1075 | |
1076 | // Zoom factor after this action. | |
dda55132 | 1077 | var newZoomFactor = Math.pow(2, gMap.maxZoom - newZoomLevel); |
ac6286bd RK |
1078 | gMap.pos.x -= (x - gMap.width / 2) * (newZoomFactor - gMap.zoomFactor); |
1079 | gMap.pos.y -= (y - gMap.height / 2) * (newZoomFactor - gMap.zoomFactor); | |
4b1d0915 | 1080 | |
5fb31b29 | 1081 | if (aEvent.deltaY < 0) |
aa45a91b | 1082 | gMap.zoomIn(); |
5fb31b29 | 1083 | else |
aa45a91b | 1084 | gMap.zoomOut(); |
4b1d0915 | 1085 | } |
23cd2dcc | 1086 | break; |
1222624d RK |
1087 | case "keydown": |
1088 | // Allow keyboard control to move and zoom the map. | |
1089 | // Should use aEvent.key instead of aEvent.which but needs bug 680830. | |
1090 | // See https://developer.mozilla.org/en-US/docs/DOM/Mozilla_event_reference/keydown | |
1091 | var dX = 0; | |
1092 | var dY = 0; | |
1093 | switch (aEvent.which) { | |
1094 | case 39: // right | |
dda55132 | 1095 | dX = -gMap.tileSize / 2; |
1222624d RK |
1096 | break; |
1097 | case 37: // left | |
dda55132 | 1098 | dX = gMap.tileSize / 2; |
1222624d RK |
1099 | break; |
1100 | case 38: // up | |
dda55132 | 1101 | dY = gMap.tileSize / 2; |
1222624d RK |
1102 | break; |
1103 | case 40: // down | |
dda55132 | 1104 | dY = -gMap.tileSize / 2; |
1222624d RK |
1105 | break; |
1106 | case 87: // w | |
1107 | case 107: // + (numpad) | |
1108 | case 171: // + (normal key) | |
aa45a91b | 1109 | gMap.zoomIn(); |
1222624d RK |
1110 | break; |
1111 | case 83: // s | |
1112 | case 109: // - (numpad) | |
1113 | case 173: // - (normal key) | |
aa45a91b | 1114 | gMap.zoomOut(); |
1222624d RK |
1115 | break; |
1116 | case 48: // 0 | |
1117 | case 49: // 1 | |
1118 | case 50: // 2 | |
1119 | case 51: // 3 | |
1120 | case 52: // 4 | |
1121 | case 53: // 5 | |
1122 | case 54: // 6 | |
1123 | case 55: // 7 | |
1124 | case 56: // 8 | |
aa45a91b | 1125 | gMap.zoomTo(aEvent.which - 38); |
1222624d RK |
1126 | break; |
1127 | case 57: // 9 | |
aa45a91b | 1128 | gMap.zoomTo(9); |
1222624d RK |
1129 | break; |
1130 | case 96: // 0 (numpad) | |
1131 | case 97: // 1 (numpad) | |
1132 | case 98: // 2 (numpad) | |
1133 | case 99: // 3 (numpad) | |
1134 | case 100: // 4 (numpad) | |
1135 | case 101: // 5 (numpad) | |
1136 | case 102: // 6 (numpad) | |
1137 | case 103: // 7 (numpad) | |
1138 | case 104: // 8 (numpad) | |
aa45a91b | 1139 | gMap.zoomTo(aEvent.which - 86); |
1222624d RK |
1140 | break; |
1141 | case 105: // 9 (numpad) | |
aa45a91b | 1142 | gMap.zoomTo(9); |
1222624d RK |
1143 | break; |
1144 | default: // not supported | |
1145 | console.log("key not supported: " + aEvent.which); | |
1146 | break; | |
1147 | } | |
1148 | ||
1149 | // Move if needed. | |
1150 | if (dX || dY) { | |
dda55132 RK |
1151 | gMap.pos.x -= dX * gMap.zoomFactor; |
1152 | gMap.pos.y -= dY * gMap.zoomFactor; | |
0f6678fa | 1153 | gMap.draw(); |
68ca4617 | 1154 | gLastMoveAction = performance.now(); |
1222624d RK |
1155 | } |
1156 | break; | |
23cd2dcc RK |
1157 | } |
1158 | } | |
1159 | }; | |
55c4a0b7 | 1160 | |
5dd2ab70 RK |
1161 | function visibilityEvHandler() { |
1162 | // Immediately draw if we just got visible. | |
1163 | if (document.hidden != true) { | |
1164 | gMap.draw(); | |
1165 | } | |
1166 | // No need to handle the event where we become invisible as we care only draw | |
1167 | // when we are visible anyhow. | |
1168 | } | |
1169 | ||
993fd081 | 1170 | var geofake = { |
55c4a0b7 | 1171 | tracking: false, |
4b12da3a | 1172 | lastPos: {x: undefined, y: undefined}, |
55c4a0b7 RK |
1173 | watchPosition: function(aSuccessCallback, aErrorCallback, aPrefObject) { |
1174 | this.tracking = true; | |
1175 | var watchCall = function() { | |
4b12da3a RK |
1176 | // calc new position in lat/lon degrees |
1177 | // 90° on Earth surface are ~10,000 km at the equator, | |
1178 | // so try moving at most 10m at a time | |
1179 | if (geofake.lastPos.x) | |
1180 | geofake.lastPos.x += (Math.random() - .5) * 90 / 1000000 | |
1181 | else | |
1182 | geofake.lastPos.x = 48.208174 | |
1183 | if (geofake.lastPos.y) | |
1184 | geofake.lastPos.y += (Math.random() - .5) * 90 / 1000000 | |
1185 | else | |
1186 | geofake.lastPos.y = 16.373819 | |
55c4a0b7 | 1187 | aSuccessCallback({timestamp: Date.now(), |
4b12da3a RK |
1188 | coords: {latitude: geofake.lastPos.x, |
1189 | longitude: geofake.lastPos.y, | |
55c4a0b7 RK |
1190 | accuracy: 20}}); |
1191 | if (geofake.tracking) | |
1192 | setTimeout(watchCall, 1000); | |
1193 | }; | |
1194 | setTimeout(watchCall, 1000); | |
1195 | return "foo"; | |
1196 | }, | |
1197 | clearWatch: function(aID) { | |
1198 | this.tracking = false; | |
1199 | } | |
1200 | } | |
1201 | ||
3610c22d RK |
1202 | function setCentering(aCheckbox) { |
1203 | if (gMapPrefsLoaded && mainDB) | |
1204 | gPrefs.set("center_map", aCheckbox.checked); | |
1205 | gCenterPosition = aCheckbox.checked; | |
1206 | } | |
1207 | ||
1208 | function setTracking(aCheckbox) { | |
1209 | if (gMapPrefsLoaded && mainDB) | |
1210 | gPrefs.set("tracking_enabled", aCheckbox.checked); | |
1211 | if (aCheckbox.checked) | |
1212 | startTracking(); | |
1213 | else | |
1214 | endTracking(); | |
1215 | } | |
1216 | ||
55c4a0b7 | 1217 | function startTracking() { |
31f0fe16 | 1218 | if (gGeolocation) { |
68afcd96 RK |
1219 | gActionLabel.textContent = "Establishing Position"; |
1220 | gAction.style.display = "block"; | |
d361104b RK |
1221 | if (navigator.requestWakeLock) { |
1222 | gGPSWakeLock = navigator.requestWakeLock("gps"); | |
1223 | } | |
4b12da3a | 1224 | gGeoWatchID = gGeolocation.watchPosition( |
55c4a0b7 | 1225 | function(position) { |
68afcd96 RK |
1226 | if (gActionLabel.textContent) { |
1227 | gActionLabel.textContent = ""; | |
1228 | gAction.style.display = "none"; | |
1229 | } | |
55c4a0b7 | 1230 | // Coords spec: https://developer.mozilla.org/en/XPCOM_Interface_Reference/NsIDOMGeoPositionCoords |
993fd081 | 1231 | var tPoint = {time: position.timestamp, |
31f0fe16 RK |
1232 | coords: {latitude: position.coords.latitude, |
1233 | longitude: position.coords.longitude, | |
1234 | altitude: position.coords.altitude, | |
1235 | accuracy: position.coords.accuracy, | |
1236 | altitudeAccuracy: position.coords.altitudeAccuracy, | |
1237 | heading: position.coords.heading, | |
1238 | speed: position.coords.speed}, | |
993fd081 | 1239 | beginSegment: !gLastTrackPoint}; |
b054bd48 RK |
1240 | // Only add point to track is accuracy is good enough. |
1241 | if (tPoint.coords.accuracy < gMinTrackAccuracy) { | |
1242 | gLastTrackPoint = tPoint; | |
1243 | gTrack.push(tPoint); | |
1244 | try { gTrackStore.push(tPoint); } catch(e) {} | |
1245 | var redrawn = false; | |
68ca4617 | 1246 | if (gCenterPosition && (!gLastMoveAction || performance.now() > gLastMoveAction + gCenterDelayAfterMove)) { |
b054bd48 RK |
1247 | var posCoord = gps2xy(position.coords.latitude, |
1248 | position.coords.longitude); | |
ac6286bd RK |
1249 | if (Math.abs(gMap.pos.x - posCoord.x) > gMap.width * gMap.zoomFactor / 4 || |
1250 | Math.abs(gMap.pos.y - posCoord.y) > gMap.height * gMap.zoomFactor / 4) { | |
dda55132 RK |
1251 | gMap.pos.x = posCoord.x; |
1252 | gMap.pos.y = posCoord.y; | |
ac6286bd | 1253 | gMap.draw(); // This draws the current point as well. |
b054bd48 RK |
1254 | redrawn = true; |
1255 | } | |
99631a75 | 1256 | } |
b054bd48 | 1257 | if (!redrawn) |
aa45a91b | 1258 | gTrackLayer.undrawCurrentLocation(); |
b4df67c9 | 1259 | gTrackLayer.drawTrackPoint(gTrack.length-1); |
05c21757 | 1260 | } |
aa45a91b | 1261 | gTrackLayer.drawCurrentLocation(tPoint); |
55c4a0b7 RK |
1262 | }, |
1263 | function(error) { | |
1264 | // Ignore erros for the moment, but this is good for debugging. | |
1265 | // See https://developer.mozilla.org/en/Using_geolocation#Handling_errors | |
915d4271 RK |
1266 | if (gDebug) |
1267 | console.log(error.message); | |
55c4a0b7 RK |
1268 | }, |
1269 | {enableHighAccuracy: true} | |
1270 | ); | |
1271 | } | |
1272 | } | |
1273 | ||
1274 | function endTracking() { | |
68afcd96 RK |
1275 | if (gActionLabel.textContent) { |
1276 | gActionLabel.textContent = ""; | |
1277 | gAction.style.display = "none"; | |
1278 | } | |
d361104b RK |
1279 | if (navigator.requestWakeLock && gGPSWakeLock) { |
1280 | console.log("releasing WakeLock"); | |
1281 | gGPSWakeLock.unlock(); | |
1282 | } | |
55c4a0b7 | 1283 | if (gGeoWatchID) { |
4b12da3a | 1284 | gGeolocation.clearWatch(gGeoWatchID); |
55c4a0b7 RK |
1285 | } |
1286 | } | |
993fd081 RK |
1287 | |
1288 | function clearTrack() { | |
1289 | gTrack = []; | |
1290 | gTrackStore.clear(); | |
aa45a91b | 1291 | gTrackLayer.drawTrack(); |
993fd081 | 1292 | } |
a8634d37 | 1293 | |
3b76e071 RK |
1294 | function loadTrackFromBackend(aTrackId, aFeedbackElement, aSuccessCallback) { |
1295 | if (aFeedbackElement) { | |
1296 | aFeedbackElement.textContent = "Loading..."; | |
1297 | // If someone loads without pointing to UI (e.g. for debugging), we just overwrite whatever's loaded. | |
1298 | if (calcTrackLength() > 1) { | |
1299 | aFeedbackElement.textContent = "Track >1km loaded, please save/clear."; | |
1300 | aFeedbackElement.classList.add("error"); | |
1301 | return; | |
1302 | } | |
1303 | } | |
57ee3e06 RK |
1304 | fetchBackend("track_json?id=" + encodeURIComponent(aTrackId), "GET", null, |
1305 | function(aResult, aStatusCode) { | |
3b76e071 | 1306 | if (aStatusCode >= 400) { |
57ee3e06 | 1307 | console.log("loading track failed: " + aStatusCode + ", result: " + aResult.message); |
3b76e071 RK |
1308 | if (aFeedbackElement) { |
1309 | aFeedbackElement.textContent = "Error: " + aResult; | |
1310 | aFeedbackElement.classList.add("error"); | |
1311 | } | |
57ee3e06 | 1312 | } |
3b76e071 RK |
1313 | else if (aResult) { |
1314 | loadTrack(aResult); | |
1315 | if (aSuccessCallback) { | |
1316 | aSuccessCallback(); | |
1317 | } | |
1318 | } | |
1319 | else { // If no result is returned, we assume a general error. | |
1320 | console.log("Error getting track with ID " + aTrackId + " from backend."); | |
1321 | if (aFeedbackElement) { | |
1322 | aFeedbackElement.textContent = "Error fetching track from backend."; | |
1323 | aFeedbackElement.classList.add("error"); | |
57ee3e06 | 1324 | } |
57ee3e06 RK |
1325 | } |
1326 | } | |
1327 | ); | |
1328 | } | |
1329 | ||
3b76e071 RK |
1330 | function loadTrack(aTrack) { |
1331 | console.log("Loading track with " + aTrack.length + " points."); | |
1332 | gTrack = aTrack; | |
1333 | gTrackStore.clear(function(aSuccess, aEvent) { | |
1334 | for (var i = 0; i < gTrack.length; i++) { | |
1335 | try { gTrackStore.push(gTrack[i]); } catch(e) {} | |
1336 | } | |
1337 | }); | |
aa45a91b | 1338 | gTrackLayer.drawTrack(); // Draws from gTrack, so not problem that gTrackStore is filled async. |
3b76e071 RK |
1339 | } |
1340 | ||
a8634d37 RK |
1341 | var gTileService = { |
1342 | objStore: "tilecache", | |
1343 | ||
5d67397a | 1344 | ageLimit: 14 * 86400 * 1000, // 2 weeks (in ms) |
3431f496 | 1345 | |
a8634d37 RK |
1346 | get: function(aStyle, aCoords, aCallback) { |
1347 | var norm = normalizeCoords(aCoords); | |
b9707ee0 | 1348 | var dbkey = getTileKey(aStyle, norm); |
a8634d37 RK |
1349 | this.getDBCache(dbkey, function(aResult, aEvent) { |
1350 | if (aResult) { | |
1351 | // We did get a cached object. | |
e8525b46 | 1352 | aCallback(aResult.image, aStyle, aCoords, dbkey); |
3431f496 | 1353 | // Look at the timestamp and return if it's not too old. |
5d67397a | 1354 | if (aResult.timestamp + gTileService.ageLimit > Date.now()) |
3431f496 RK |
1355 | return; |
1356 | // Reload cached tile otherwise. | |
5d67397a RK |
1357 | var oldDate = new Date(aResult.timestamp); |
1358 | console.log("reload cached tile: " + dbkey + " - " + oldDate.toUTCString()); | |
a8634d37 | 1359 | } |
3431f496 RK |
1360 | // Retrieve image from the web and store it in the cache. |
1361 | var XHR = new XMLHttpRequest(); | |
1362 | XHR.open("GET", | |
1363 | gMapStyles[aStyle].url | |
1364 | .replace("{x}", norm.x) | |
1365 | .replace("{y}", norm.y) | |
1366 | .replace("{z}", norm.z) | |
5ed2937e | 1367 | .replace("[a-c]", String.fromCharCode(97 + Math.floor(Math.random() * 3))) |
ca77d52d | 1368 | .replace("[a-d]", String.fromCharCode(97 + Math.floor(Math.random() * 4))) |
5ed2937e | 1369 | .replace("[1-4]", 1 + Math.floor(Math.random() * 4)), |
3431f496 RK |
1370 | true); |
1371 | XHR.responseType = "blob"; | |
1372 | XHR.addEventListener("load", function () { | |
1373 | if (XHR.status === 200) { | |
1374 | var blob = XHR.response; | |
e8525b46 | 1375 | aCallback(blob, aStyle, aCoords, dbkey); |
6d7cdcf6 | 1376 | gTileService.setDBCache(dbkey, {image: blob, timestamp: Date.now()}); |
3431f496 RK |
1377 | } |
1378 | }, false); | |
1379 | XHR.send(); | |
a8634d37 RK |
1380 | }); |
1381 | }, | |
1382 | ||
1383 | getDBCache: function(aKey, aCallback) { | |
1384 | if (!mainDB) | |
1385 | return; | |
1386 | var transaction = mainDB.transaction([this.objStore]); | |
1387 | var request = transaction.objectStore(this.objStore).get(aKey); | |
1388 | request.onsuccess = function(event) { | |
1389 | aCallback(request.result, event); | |
1390 | }; | |
1391 | request.onerror = function(event) { | |
1392 | // Errors can be handled here. | |
1393 | aCallback(undefined, event); | |
1394 | }; | |
1395 | }, | |
1396 | ||
1397 | setDBCache: function(aKey, aValue, aCallback) { | |
1398 | if (!mainDB) | |
1399 | return; | |
1400 | var success = false; | |
1401 | var transaction = mainDB.transaction([this.objStore], "readwrite"); | |
1402 | var objStore = transaction.objectStore(this.objStore); | |
1403 | var request = objStore.put(aValue, aKey); | |
1404 | request.onsuccess = function(event) { | |
1405 | success = true; | |
1406 | if (aCallback) | |
1407 | aCallback(success, event); | |
1408 | }; | |
1409 | request.onerror = function(event) { | |
1410 | // Errors can be handled here. | |
1411 | if (aCallback) | |
1412 | aCallback(success, event); | |
1413 | }; | |
1414 | }, | |
1415 | ||
1416 | unsetDBCache: function(aKey, aCallback) { | |
1417 | if (!mainDB) | |
1418 | return; | |
1419 | var success = false; | |
1420 | var transaction = mainDB.transaction([this.objStore], "readwrite"); | |
1421 | var request = transaction.objectStore(this.objStore).delete(aKey); | |
1422 | request.onsuccess = function(event) { | |
1423 | success = true; | |
1424 | if (aCallback) | |
1425 | aCallback(success, event); | |
1426 | }; | |
1427 | request.onerror = function(event) { | |
1428 | // Errors can be handled here. | |
1429 | if (aCallback) | |
1430 | aCallback(success, event); | |
1431 | } | |
3431f496 RK |
1432 | }, |
1433 | ||
1434 | clearDB: function(aCallback) { | |
1435 | if (!mainDB) | |
1436 | return; | |
1437 | var success = false; | |
1438 | var transaction = mainDB.transaction([this.objStore], "readwrite"); | |
1439 | var request = transaction.objectStore(this.objStore).clear(); | |
1440 | request.onsuccess = function(event) { | |
1441 | success = true; | |
e4840ddc | 1442 | console.log("Cache cleared."); |
3431f496 RK |
1443 | if (aCallback) |
1444 | aCallback(success, event); | |
1445 | }; | |
1446 | request.onerror = function(event) { | |
1447 | // Errors can be handled here. | |
e4840ddc | 1448 | console.log("Error clearing cache!"); |
3431f496 RK |
1449 | if (aCallback) |
1450 | aCallback(success, event); | |
1451 | } | |
a8634d37 RK |
1452 | } |
1453 | }; |